19017416093 has 4 divisors (see below), whose sum is σ = 20480294268. Its totient is φ = 17554537920.

The previous prime is 19017416087. The next prime is 19017416107. The reversal of 19017416093 is 39061471091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39061471091 = 29 ⋅1346947279.

It can be written as a sum of positive squares in 2 ways, for example, as 3228739684 + 15788676409 = 56822^2 + 125653^2 .

It is a cyclic number.

It is not a de Polignac number, because 19017416093 - 2³⁰ = 17943674269 is a prime.

It is a super-2 number, since 2×19017416093² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19017416093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19017416003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731439068 + ... + 731439093.

It is an arithmetic number, because the mean of its divisors is an integer number (5120073567).

Almost surely, 2^19017416093 is an apocalyptic number.

19017416093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19017416093 is a deficient number, since it is larger than the sum of its proper divisors (1462878175).

19017416093 is a wasteful number, since it uses less digits than its factorization.

19017416093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462878174.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 19017416093 in words is "nineteen billion, seventeen million, four hundred sixteen thousand, ninety-three".